NASA made headlines in December when it announced it found a new form of life with a DNA completely alien to everything we know.

NASA也在12月头条宣布其发现一种全新形式的生命存在，这种生命的DNA完全是地球上不存在的。

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We have found that alien invasive species' DNA sequences are nonrandom, and the signatures are specific: the closer the species are, the more similar the signatures will be.

通过对不同入侵物种基因签名的分析比较，发现入侵物种的DNA序列非随机，基因签名具有物种特性，且物种越近，签名越相似。

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Four-stranded DNA, a database of alien planets, a new super-chemical to kill hospital bugs and a byzantine gamma-radiation blast.

ENGADGET: Alt-week 1.26.13: quadruple DNA helixes, Byzantine mutants and battling hospital bugs